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A simple and accurate AC resistance model is essential for online estimation of copper loss which can be utilized in several ways of controlling and monitoring. This paper presents application of Squared Field Derivative on three-phase IPM machine to model AC resistance of rectangular conductors. It focuses on Finite Element Analysis to validate analytical model. The deviations from analytical model...
This paper proposes an alternative position estimation method of surface permanent magnet (SPM) machines at low speed using high frequency (HF) voltage injection. SPM machines traditionally do not have enough spatial saliency signals because of their symmetric rotors. The proposed solution is to track the HF eddy-current-reflected asymmetric resistance for position estimation. It is shown that the...
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